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POHorrendous Performance in a Simple Java2D App
 

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    <p>I've just finished <a href="http://tametick.com/fwod/" rel="nofollow noreferrer">my entry</a> for the 14th Ludum Dare 48-hours game making competition yesterday, and decided to do it in java using java2d for the graphics.</p> <p>I'm not that familiar with the API and haven't done a lot of graphics programming, but my game is quite small (only a dozen or so very small moving object) so I assumed I could program it naively and still encounter no performance problems.</p> <p>Needless to say, I was wrong. The game performs alright most of the time but once there are a bit too many 'enemies' moving around on the screen or the resolution is cranked up too high it start getting visibly slower.</p> <p>I've determined the performance bottleneck to be the screen drawing functions, when those are commented out the game is very fast.</p> <p>Could someone give me a heads up on what I might be doing wrong here? The (very short) source code is located <a href="http://github.com/ido/ludum-dare-2009/tree/master" rel="nofollow noreferrer">here</a> with most of it the <a href="http://github.com/ido/ludum-dare-2009/blob/b3e8d300227c52f890ad72f9708a5e717a903386/src/Main.java" rel="nofollow noreferrer">Main</a> class, with the usual suspects being the <a href="http://github.com/ido/ludum-dare-2009/blob/b3e8d300227c52f890ad72f9708a5e717a903386/src/Main.java#L123" rel="nofollow noreferrer">draw()</a> function that is called in the <a href="http://github.com/ido/ludum-dare-2009/blob/b3e8d300227c52f890ad72f9708a5e717a903386/src/Main.java#L285" rel="nofollow noreferrer">inner game loop</a>.</p> <p>I already use a <a href="http://github.com/ido/ludum-dare-2009/blob/b3e8d300227c52f890ad72f9708a5e717a903386/src/Main.java#L337" rel="nofollow noreferrer">BufferStrategy</a> to update the screen, so that shouldn't be the problem unless I'm doing it wrong.</p> <p>Thanks in advance, Ido.</p>
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    1. USIdo Yehieli
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    1. CO+1, There seems to be a number of related questions on this topic but I will be interested to see if this generates any new info.
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